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Welcome to Bentley Descartes for MicroStation V8i (SELECTseries). This course is for MicroStation users who want to incorporate raster imagery into their MicroStation drawings. The class will cover tools and options available in MicroStation Raster Manager as well as the raster editing and manipulation tools installed by Bentley Descartes. In addition to working with standard raster images this course also incorporates Point Clouds, Scalable Terrain Models, and Raster Surfaces.
EnvisionCAD and Bentley assume no responsibility for errors that may appear in this software or occur as a result of its use.
Document Conventions
Several conventions are used throughout this document to indicate actions to be taken or to highlight important information. The conventions are as follows:
Item Meaning
Place Text a command name or a file to select
Tools > Options a command path to select – usually from a pull-down menus
Key-In a prompt to enter data with the keyboard
Document name italics in this style are used when referring to another document
Note: Text information about a command or process to pay particular attention to
Emphasis an important word or phrase
1. Numbered Steps an action to be performed as part of a lab activities
<D>or Data press the data button on the mouse
<R>or Reset press the reset button on the mouse
<T>or Tentative press the tentative button on the mouse
TABLE OF CONTENTS EnvisionCAD– About Us ............................................................................. ii
EnvisionCAD– Guaranteed Training ......................................................... ii
Bentley Systems, Inc. .................................................................................... ii
Copyright ...................................................................................................... iii
Limitation of Liability ................................................................................. iii
Trademarks .................................................................................................. iii
Introduction ................................................................................................. iv
Document Conventions ............................................................................... iv
1. Raster Data Overview ................................................................... 1 Vector Data Review .......................................................................................1
Common Vector Formats ................................................................................................. 1
Raster Data .....................................................................................................2 Raster Terminology .......................................................................................................... 2 Encoding/Compression Schemes ..................................................................................... 4 Common Raster File Types ............................................................................................. 5
Scanning .........................................................................................................7 Resolution .......................................................................................................................... 7 File Type ............................................................................................................................ 7
Send to Back .................................................................................................................... 54 Fit to View ....................................................................................................................... 54 Align View to Raster ....................................................................................................... 55 Actual Resolution (1:1) ................................................................................................... 55 Contract/Brightness ........................................................................................................ 55
Lab 6b – Color Image Editing ....................................................................91 Objectives......................................................................................................................... 91 Open MicroStation .......................................................................................................... 91 Create a Color Mask ....................................................................................................... 91 Edit Using a Color Mask ................................................................................................ 93
7. Image Transforms ....................................................................... 95 Descartes Raster Control Toolbox .............................................................95
Lab 7a – Square and Crop Images ..........................................................101 Objectives....................................................................................................................... 101 Square an Image using Raster Manager ..................................................................... 101 Square and Crop an Image using Descartes ............................................................... 103
Lab 7b – Merge and Corridor Images .....................................................105 Objectives....................................................................................................................... 105
Combine Images using the Merge Tool ....................................................................... 105 Combine Images using the Corridor Tool .................................................................. 107
8. Local Transforms ...................................................................... 109 Local Transform Toolbox .........................................................................109
Local Copy ..................................................................................................................... 109 Local Move .................................................................................................................... 109 Local Scale ..................................................................................................................... 109 Local Rotate................................................................................................................... 110 Local Mirror .................................................................................................................. 110 Local Warp .................................................................................................................... 110 Cover Up Area .............................................................................................................. 110 Clone Area ..................................................................................................................... 110
Lab 8 – Local Transforms ........................................................................111 Open MicroStation ....................................................................................................... 111 Use the Local Mirror Tool ........................................................................................... 112 Use the Local Copy Tool ............................................................................................... 113 Use the Clone Area tool ................................................................................................ 114
9. Geographic Transforms ............................................................ 117 The Geographic Toolbox ..........................................................................117
Geographic Coordinate System ................................................................................... 117 Global Positioning System (GPS) ................................................................................ 123 Export Google Earth (KML) File ................................................................................ 123 Capture Google Earth Image ....................................................................................... 124 Define Placemark Monument ...................................................................................... 125 Synchronize Google Earth View .................................................................................. 126 Follow Google Earth View ........................................................................................... 126 Google Earth Settings ................................................................................................... 127 Play Camera Animation In Google Earth .................................................................. 127 Open Location in Google Maps ................................................................................... 128
Longitude, Latitude Coordinate Readout ...............................................129
Longitude, Latitude Coordinate Input ....................................................129
Raster Manager .........................................................................................134 Create New WMS Server Attachment ........................................................................ 134 Reconnect Previous WMS Attachment ....................................................................... 138
Lab 9a – Working with Geographic Coordinate Systems .....................139 Objectives ...................................................................................................................... 139 Open the Design File ..................................................................................................... 139 Define Coordinate System from Library .................................................................... 139 Define Coordinate System from a File ........................................................................ 142 Define Coordinate System from a Reference .............................................................. 144
Define Custom Coordinate System for Grid-to-Ground Transformation ............... 145
Lab 9b – Attaching WMS Server Images ................................................148 Objectives....................................................................................................................... 148 Open the Design File ..................................................................................................... 148 Define Coordinate System from Library .................................................................... 148 Attach ArcView Shapefiles ........................................................................................... 149 Create a WMS Server Connection .............................................................................. 151
Mosaic .........................................................................................................156 Balance Tone ................................................................................................................. 156 Define Seam ................................................................................................................... 157
Lab 10a – Combine Images ......................................................................158 Objectives....................................................................................................................... 158 Open MicroStation ........................................................................................................ 158 Combine Using AND Operator .................................................................................... 159 Combine Using OR Operator ...................................................................................... 160 Combine Using XOR Operator .................................................................................... 161 Combine Using Compare Operator............................................................................. 162
Lab 10b – Mosaic Images ..........................................................................163 Objectives....................................................................................................................... 163 Open MicroStation ........................................................................................................ 163 Balance Tones Between Images ................................................................................... 163 Edit Seams Between Images ......................................................................................... 164
11. Rasterizing Vector Data ............................................................ 166 Rasterize Toolbox ......................................................................................166
Stamp Vector ................................................................................................................. 166 Merge ............................................................................................................................. 166 Match Line Mapping Settings ...................................................................................... 166 Line Mapping Settings .................................................................................................. 167
Lab 11 – Rasterizing Vector Data ............................................................168 Objectives....................................................................................................................... 168 Open MicroStation ........................................................................................................ 168 Rasterize multiple elements using the Merge tool ...................................................... 168 Manually Stamp Vectors into an Image ...................................................................... 171 Automatically Stamp Vectors into an Image .............................................................. 173
12. Vectorizing Raster Data ............................................................ 174 Vectorize Toolbox ......................................................................................174
Place Element ................................................................................................................ 175 Continue Element .......................................................................................................... 176 Insert Element ............................................................................................................... 176 Convert Lines ................................................................................................................ 177 Convert Area ................................................................................................................. 177
Objectives....................................................................................................................... 208 Open MicroStation ........................................................................................................ 208 Place Control Points ...................................................................................................... 208 Save Control Points ....................................................................................................... 213 Resample Image ............................................................................................................ 213
Assign Material ..........................................................................................216
Render the View ........................................................................................217
Lab 14 – Image Draping ...........................................................................219 Objectives....................................................................................................................... 219 Open MicroStation ........................................................................................................ 219 Prepare the Drawing ..................................................................................................... 219 Assign the Material ....................................................................................................... 221 Render the View ............................................................................................................ 223
15. Point Clouds ............................................................................... 224 Point Cloud Overview ...............................................................................224
Descartes Additions to the Point Cloud Dialog .......................................227
Point Cloud – Advanced Toolbox ............................................................227 Classification ................................................................................................................. 227 Tile Export ..................................................................................................................... 228 Drape Element ............................................................................................................... 228 Snap Element ................................................................................................................. 228 Fit Plane ......................................................................................................................... 229 Fit Cylinder .................................................................................................................... 229 Smart Snap .................................................................................................................... 229 Visual Explorer ............................................................................................................. 229
Lab 15 – Point Clouds ...............................................................................229 Objectives....................................................................................................................... 230 Open MicroStation ........................................................................................................ 230 Attach and Evaluate a Point Cloud ............................................................................. 230 Change Point Cloud Classifications............................................................................. 232 Tile Export ..................................................................................................................... 234
Assign to Area ............................................................................................................... 264 Warp to Area ................................................................................................................. 264 Mosaic Area ................................................................................................................... 265 Stretch to Area .............................................................................................................. 266 Convert to Advanced Texture ...................................................................................... 266 Start Editing .................................................................................................................. 266 End Editing .................................................................................................................... 266 Convert to Texture ........................................................................................................ 266
Draping images attached via Raster Manager has become a relatively easy task. Attached rasters can be used as materials and applied to a 3D surface. To illustrate the process we will use a raster image of the earth and apply it to a 3D sphere.
Raster Manager
To allow an image to be used as a material for draping there are a few steps to complete in Raster Manager.
1. Attach the image to be draped on the 3D object/surface.
2. <R> in the column header and turn on the column display for Draping.
1. Launch MicroStation using the EnvisionCAD icon.
2. In the MicroStation Manager dialog, change the following settings:
a. Set the User workspace to EnvisionCAD b. Set the Project workspace to EnvisionCAD-Descartes c. Set the Interface to EnvisionCAD d. Set the directory to
C:\EnvisionCAD\MicroStation\Descartes
3. Select the file named: Project_Drape.dgn
4. Open Raster Manager.
Prepare the Drawing
1. There are two images attached that are not displayed. See if you can get the images to display. If you have successfully displayed the images, move ahead to step 5.
2. The images are attached at an elevation outside the active clipping plane. Select Display > Fit Rasters to View from the Raster Manager menu bar.
3. In the tool settings window, toggle on the option to Expand Clipping Planes.
4. <D> anywhere in the view.
5. The images are displayed. Select the MicroStation Fit View tool to fit the refit the view.
6. Window in on the design approximately as shown.